Gantry transmission assembly and vehicle model
By using metal wire wrapped around the outer circumference of the first drive shaft and placed opposite or abutting the adapter structure in the vehicle model, the problem of high installation difficulty in the prior art is solved, a simpler limiting method is achieved, and assembly efficiency is improved.
Patent Information
- Application Number
- CN202520338254.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In existing vehicle models, the universal joint of the differential is rotatably connected to the first drive shaft of the output reducer via a rotating shaft, and a bearing is installed between the first drive shaft and the reducer housing, which makes installation difficult.
A metal wire is wound around the outer circumference of the first drive shaft and is positioned opposite or abutting against the adapter structure to prevent the adapter structure from disengaging from the first shaft hole, thus replacing the traditional bearing limiting method and simplifying the limiting process.
It reduces the difficulty of assembling the vehicle model, improves assembly efficiency, and simplifies the limiting operation.
Smart Images
Figure CN223969481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle model technology, and in particular to a portal axle drive assembly and a vehicle model. Background Technology
[0002] A vehicle model is a model made based on a real vehicle, according to its proportions. Some highly detailed vehicle models are identical to real vehicles in shape, structure, color, and interior components. In practical applications, vehicle models can be used as decorative items to adorn the environment or collected as souvenirs.
[0003] In existing vehicle models, the ball joint of the differential is rotatably connected to the first drive shaft of the output reducer via a rotating shaft, and a bearing is installed between the first drive shaft and the reducer housing to limit the rotation of the shaft. In this way, the bearing simultaneously undertakes the functions of connection and limitation, making the assembly of the vehicle model quite difficult. Utility Model Content
[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a portal axle drive assembly and a vehicle model, which can reduce the difficulty of assembling the vehicle model.
[0005] In a first aspect, this utility model provides a gantry transmission assembly, comprising: an output reducer including a first drive shaft having a communicating mounting cavity and a first shaft hole; a differential including a second drive shaft having a universal joint housed in the mounting cavity; a transition structure connected to the universal joint and rotatably fitted into the first shaft hole; and a metal wire wound around the outer periphery of the first drive shaft and opposite or abutting against the transition structure to prevent the transition structure from disengaging from the first shaft hole.
[0006] The portal bridge drive assembly provided by the first aspect of this utility model has at least the following beneficial effects:
[0007] By setting a metal wire, which is wound around the outer circumference of the first drive shaft and is opposite or abuts against the adapter structure, the adapter structure is restricted from detaching from the first shaft hole. Compared with bearings for limiting, the method of using a metal wire for limiting is simpler. The metal wire only needs to be wound around the first drive shaft at the corresponding position of the adapter structure to reliably restrict the adapter structure from detaching from the first drive shaft, thus reducing the difficulty of installing the vehicle model.
[0008] In one embodiment of this implementation, an annular groove is formed on the outer periphery of the first drive shaft, the first shaft hole is formed on the bottom wall of the annular groove, and the metal wire is arranged around the annular groove.
[0009] In one embodiment of this implementation, the adapter structure includes a first rotating shaft and a second rotating shaft, the first rotating shaft passing through the second rotating shaft and rotatably engaging with the first shaft hole, and the second rotating shaft being rotatably connected to the universal ball joint.
[0010] In one embodiment of this implementation, the universal ball joint has a second shaft hole, the second rotating shaft is rotatably engaged with the second shaft hole, and the axis of the first shaft hole is perpendicular to the axis of the second shaft hole.
[0011] In one embodiment of this implementation, the universal ball joint has a movable groove, which communicates with the second shaft hole. The first rotating shaft passes through the movable groove, and when the universal ball joint rotates relative to the second rotating shaft, the first rotating shaft can move along the movable groove.
[0012] In one embodiment of this implementation, the second rotating shaft has a third shaft hole, the first rotating shaft passes through the third shaft hole, and both ends are respectively rotatably engaged with the two first shaft holes.
[0013] In one embodiment of this implementation, the output reducer includes an output shaft, the first drive shaft is provided with a first gear, the output shaft is provided with a second gear that meshes with the first gear, the number of teeth of the second gear is greater than the number of teeth of the first gear, and the output shaft is used to connect to a wheel.
[0014] In one embodiment of this implementation, the output reducer includes a mounting housing and a bearing component, the first drive shaft is rotatably connected to the mounting housing via the bearing component, and is located between the metal wire and the first gear.
[0015] In one embodiment of this implementation, the mounting cavity is constructed as a spherical cavity that matches the universal ball joint.
[0016] Secondly, the present invention provides a vehicle model, which includes wheels and a portal axle drive assembly as described in any embodiment of the first aspect, wherein the output end of the output reducer of the portal axle drive assembly is connected to the wheels.
[0017] The vehicle model provided by the second aspect of this utility model has at least the following beneficial effects:
[0018] By incorporating the portal axle drive assembly of the first aspect of the embodiment into the vehicle model, the installation difficulty of the vehicle model can be reduced and the assembly efficiency improved.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0021] Figure 1 This is a three-dimensional structural schematic diagram of the portal bridge transmission assembly according to one embodiment of the present utility model;
[0022] Figure 2 yes Figure 1 A schematic diagram of the portal bridge drive assembly in its disassembled state;
[0023] Figure 3 yes Figure 1 A three-dimensional structural diagram of a differential;
[0024] Figure 4 yes Figure 1 A three-dimensional structural diagram of the second drive shaft and output reducer of the differential;
[0025] Figure 5 yes Figure 4 A cross-sectional structural schematic diagram of the second drive shaft and the output reducer;
[0026] Figure 6 yes Figure 4 A schematic diagram of the second drive shaft and part of the output accelerator in the disassembled state.
[0027] Figure label:
[0028] Portal bridge drive assembly 100; output reducer 10; first drive shaft 11; mounting cavity 111; first shaft hole 112; annular groove 113; first gear 114; output shaft 12; second gear 121; mounting housing 13; bearing component 14; differential 20; second drive shaft 21; universal ball joint 211; second shaft hole 2111; movable groove 2112; lever 22; input shaft 23; adapter structure 30; first rotating shaft 31; second rotating shaft 32; third shaft hole 321; metal wire 40; steering drive 50. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0033] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0034] Please see Figures 1 to 5 , Figure 1 This is a three-dimensional structural schematic diagram of the portal bridge transmission assembly 100 according to one embodiment of the present utility model; Figure 2 yes Figure 1 A schematic diagram of the gantry bridge drive assembly 100 in its disassembled state; Figure 3 yes Figure 1 A three-dimensional structural diagram of the differential 20; Figure 4 yes Figure 1 A three-dimensional structural diagram of the second drive shaft 21 of the differential 20 and the output reducer 10; Figure 5 yes Figure 4A cross-sectional view of the second drive shaft 21 and the output reducer 10 is provided in this embodiment of the invention. The gantry transmission assembly 100 includes an output accelerator, a differential 20, a transition structure 30, and a metal wire 40. The output reducer 10 includes a first drive shaft 11, which has a communicating mounting cavity 111 and a first shaft hole 112. The differential 20 includes a second drive shaft 21, which has a universal joint 211 housed in the mounting cavity 111. The transition structure 30 is connected to the universal joint 211 and rotatably fitted into the first shaft hole 112. The metal wire 40 is wound around the outer periphery of the first drive shaft 11 and is opposite to or abuts against the transition structure 30 to prevent the transition structure 30 from disengaging from the first shaft hole 112.
[0035] Specifically, there are two output reducers 10, which are located on opposite sides of the differential 20. The differential 20 also has two first drive shafts 11, each connected to a corresponding output reducer via a universal joint 211. The differential 20 further includes a shift block 22 and an input shaft 23. The input shaft 23 engages with one of the first drive shafts 11 and is used to connect to the drive unit, allowing the drive unit to transmit power to the first drive shaft 11. The shift block 22 allows the user to switch between differential and synchronous modes. Specifically, by shifting the shift block 22, the user can separate the two first drive shafts 11, allowing them to rotate at different speeds; alternatively, the user can shift the shift block 22 to circumferentially connect the two first drive shafts 11, allowing them to rotate at the same speed. The portal axle drive assembly 100 also includes a steering drive 50, which is mounted on the differential 20 and connected to two output reducers 10. The steering drive 50 can drive the two output reducers 10 to rotate relative to the differential 20 to achieve the steering function.
[0036] Specifically, the metal wire 40 is wound multiple times around the outer circumference of the first drive shaft 11 to improve its reliability in limiting the transition structure 30.
[0037] By setting a metal wire 40, which is wound around the outer periphery of the first drive shaft 11 and is opposite to or abuts against the adapter structure 30, the adapter structure 30 is restricted from detaching from the first shaft hole 112. Compared with bearings for limiting, the method of using metal wire 40 for limiting is simpler. It is only necessary to wind the metal wire 40 around the first drive shaft 11 at the corresponding position of the adapter structure 30 to reliably restrict the adapter structure 30 from detaching from the first drive shaft 11, thus reducing the installation difficulty of the vehicle model.
[0038] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 , Figure 6 yes Figure 4 The diagram shows the second drive shaft 21 and part of the output accelerator in their disassembled state. An annular groove 113 is formed on the outer periphery of the first drive shaft 11, and a first shaft hole 112 is formed in the bottom wall of the annular groove 113. A metal wire 40 is wound around the annular groove 113. This arrangement allows the annular groove 113 to axially limit the metal wire 40, reducing the risk of the metal wire 40 detaching from the first drive shaft 11.
[0039] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The adapter structure 30 includes a first rotating shaft 31 and a second rotating shaft 32. The first rotating shaft 31 passes through the second rotating shaft 32 and is rotatably engaged with the first shaft hole 112. The second rotating shaft 32 is rotatably connected to the universal ball joint 211. This configuration allows for the rotation of both the output reducer 10 and the differential 20, improving the user experience.
[0040] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The universal ball joint 211 has a second shaft hole 2111, and the second rotating shaft 32 is rotatably engaged with the second shaft hole 2111. The axis of the first shaft hole 112 is perpendicular to the axis of the second shaft hole 2111. This arrangement allows for relative rotation between the second rotating shaft 32 and the universal ball joint 211, and the structure is relatively simple. Furthermore, the perpendicularity of the axes around which the two rotational degrees of freedom are located makes it applicable to various scenarios and helps to further improve the user experience.
[0041] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The universal ball joint 211 has a movable groove 2112, which communicates with the second shaft hole 2111. The first rotating shaft 31 passes through the movable groove 2112. When the universal ball joint 211 rotates relative to the second rotating shaft 32, the first rotating shaft 31 can move along the movable groove 2112. Specifically, the movable groove 2112 is strip-shaped, so that the first rotating shaft 31 can rotate relative to the universal ball joint 2111 along the movable groove 2112 under the drive of the second rotating shaft 32. With this configuration, the movable groove 2112 can avoid the first rotating shaft 31 when the universal ball joint 211 and the second rotating shaft 32 rotate relative to each other. At the same time, the movable groove 2112 can limit the angle of relative rotation between the universal ball joint 211 and the second rotating shaft 32.
[0042] In one embodiment of this implementation, please refer to Figure 5 and Figure 6The second rotating shaft 32 has a third shaft hole 321, through which the first rotating shaft 31 passes, and both ends are rotatably engaged with the two first shaft holes 112 respectively. With this arrangement, the first rotating shaft 31 and the first transmission shaft 11 have good connection strength and can support stable relative rotation of the two.
[0043] Specifically, the first rotating shaft 31 is rotatably engaged with the third shaft hole 321 to facilitate stable steering.
[0044] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The output reducer 10 includes an output shaft 12, a first transmission shaft 11 with a first gear 114, and an output shaft 12 with a second gear 121 meshing with the first gear 114. The number of teeth on the second gear 121 is greater than the number of teeth on the first gear 114. The output shaft 12 is used to connect to a wheel. This configuration enables speed reduction transmission, allowing a larger torque to be transmitted to the wheel.
[0045] In one embodiment of this implementation, please refer to Figure 5 and Figure 6 The output reducer 10 includes a mounting housing 13 and a bearing component 14. The first drive shaft 11 is rotatably connected to the mounting housing 13 via the bearing component 14 and is located between the metal wire 40 and the first gear 114. This arrangement places the bearing component 14 on the relatively inner side of the mounting housing 13, facilitating the simple assembly process of inserting the second drive shaft 21 into the mounting housing 13 and rotatably connecting it to the mounting housing 13 via the bearing component 14 after the first drive shaft 11 and the second drive shaft 21 have been assembled.
[0046] In one embodiment of this implementation, please refer to Figure 4 The mounting cavity 111 is constructed as a spherical cavity that matches the universal ball joint 211. This design provides better support for the universal ball joint 211.
[0047] Please see Figure 1 This utility model provides a vehicle model, which includes wheels (not shown) and a portal axle transmission assembly 100. The output end of the output reducer 10 of the portal axle transmission assembly 100 is connected to the wheels. Specifically, the vehicle model can be a car model, a bus model, or other automobile model. There are two wheels, each connected to the output end of its corresponding output reducer 10. By incorporating the portal axle transmission assembly 100 of this utility model into the vehicle model, the assembly difficulty can be reduced and the assembly efficiency improved.
[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.
Claims
1. A door bridge drive assembly, characterized by, The output speed reducer comprises a first transmission shaft, a differential, an adapter structure, and a wire. The first transmission shaft is provided with a communicating installation cavity and a first shaft hole. The differential comprises a second transmission shaft provided with a universal ball head. The adapter structure is connected with the universal ball head and rotationally fitted in the first shaft hole. The wire is arranged around the outer periphery of the first transmission shaft and opposite or abuts against the adapter structure to limit the adapter structure from being separated from the first shaft hole.
2. The portal drive assembly of claim 1, wherein, The outer periphery of the first transmission shaft is provided with an annular groove.
3. The portal drive assembly of claim 1, wherein, The first shaft hole is arranged on the bottom wall of the annular groove.
4. The portal drive assembly of claim 3, wherein, The adapter structure comprises a first rotating shaft and a second rotating shaft.
5. The portal drive assembly of claim 4, wherein, The first rotating shaft is arranged through the second rotating shaft and rotationally fitted in the first shaft hole.
6. The portal drive assembly of claim 3, wherein, The second rotating shaft is rotationally connected with the universal ball head.
7. The portal drive assembly of claim 1, wherein, The universal ball head is provided with a second shaft hole.
8. The portal drive assembly of claim 7, wherein, The second rotating shaft is rotationally fitted in the second shaft hole.
9. The portal drive assembly of claim 1, wherein, The axis of the first shaft hole is perpendicular to the axis of the second shaft hole.
10. A vehicle model, characterized by The universal ball head is provided with a movable groove. The movable groove is communicated with the second shaft hole. The first rotating shaft is arranged through the movable groove. When the universal ball head rotates relative to the second rotating shaft, the first rotating shaft can move along the movable groove. The second rotating shaft is provided with a third shaft hole. The first rotating shaft is arranged through the third shaft hole and rotationally fitted in the two first shaft holes. The output speed reducer comprises an output shaft. The first transmission shaft is provided with a first gear. The output shaft is provided with a second gear meshing with the first gear. The number of teeth of the second gear is greater than that of the first gear. The output shaft is used for being connected with a wheel. The output speed reducer comprises an installation shell and a bearing. The first transmission shaft is rotationally connected with the installation shell through the bearing and located between the wire and the first gear. The installation cavity is configured as a spherical cavity matched with the universal ball head. The output end of the output speed reducer of the portal axle transmission assembly is connected with a wheel.